[wxWidgets.git] / src / freetype / type1z / z1objs.c

/***************************************************************************/
/*                                                                         */
/*  z1objs.c                                                               */
/*                                                                         */
/*    Experimental Type 1 objects manager (body).                          */
/*                                                                         */
/*  Copyright 1996-2000 by                                                 */
/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
/*                                                                         */
/*  This file is part of the FreeType project, and may only be used,       */
/*  modified, and distributed under the terms of the FreeType project      */
/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
/*  this file you indicate that you have read the license and              */
/*  understand and accept it fully.                                        */
/*                                                                         */
/***************************************************************************/


#include <freetype/internal/ftdebug.h>
#include <freetype/internal/ftstream.h>


#ifdef FT_FLAT_COMPILE

#include "z1gload.h"
#include "z1load.h"
#include "z1afm.h"

#else

#include <type1z/z1gload.h>
#include <type1z/z1load.h>
#include <type1z/z1afm.h>

#endif


#include <freetype/internal/psnames.h>


  /*************************************************************************/
  /*                                                                       */
  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
  /* messages during execution.                                            */
  /*                                                                       */
#undef  FT_COMPONENT
#define FT_COMPONENT  trace_z1objs


  /*************************************************************************/
  /*                                                                       */
  /*                            FACE  FUNCTIONS                            */
  /*                                                                       */
  /*************************************************************************/


  /*************************************************************************/
  /*                                                                       */
  /* <Function>                                                            */
  /*    Z1_Done_Face                                                       */
  /*                                                                       */
  /* <Description>                                                         */
  /*    The face object destructor.                                        */
  /*                                                                       */
  /* <Input>                                                               */
  /*    face :: A typeless pointer to the face object to destroy.          */
  /*                                                                       */
  LOCAL_FUNC
  void  Z1_Done_Face( T1_Face  face )
  {
    FT_Memory  memory;
    T1_Font*   type1 = &face->type1;


    if ( face )
    {
      memory = face->root.memory;

#ifndef Z1_CONFIG_OPTION_NO_MM_SUPPORT
      /* release multiple masters information */
      Z1_Done_Blend( face );
      face->blend = 0;
#endif

      /* release font info strings */
      {
        T1_FontInfo*  info = &type1->font_info;


        FREE( info->version );
        FREE( info->notice );
        FREE( info->full_name );
        FREE( info->family_name );
        FREE( info->weight );
      }

      /* release top dictionary */
      FREE( type1->charstrings_len );
      FREE( type1->charstrings );
      FREE( type1->glyph_names );

      FREE( type1->subrs );
      FREE( type1->subrs_len );

      FREE( type1->subrs_block );
      FREE( type1->charstrings_block );
      FREE( type1->glyph_names_block );

      FREE( type1->encoding.char_index );
      FREE( type1->font_name );

#ifndef Z1_CONFIG_OPTION_NO_AFM
      /* release afm data if present */
      if ( face->afm_data )
        Z1_Done_AFM( memory, (Z1_AFM*)face->afm_data );
#endif

      /* release unicode map, if any */
      FREE( face->unicode_map.maps );
      face->unicode_map.num_maps = 0;

      face->root.family_name = 0;
      face->root.style_name  = 0;
    }
  }


  /*************************************************************************/
  /*                                                                       */
  /* <Function>                                                            */
  /*    Z1_Init_Face                                                       */
  /*                                                                       */
  /* <Description>                                                         */
  /*    The face object constructor.                                       */
  /*                                                                       */
  /* <Input>                                                               */
  /*    stream     ::  input stream where to load font data.               */
  /*                                                                       */
  /*    face_index :: The index of the font face in the resource.          */
  /*                                                                       */
  /*    num_params :: Number of additional generic parameters.  Ignored.   */
  /*                                                                       */
  /*    params     :: Additional generic parameters.  Ignored.             */
  /*                                                                       */
  /* <InOut>                                                               */
  /*    face       :: The face record to build.                            */
  /*                                                                       */
  /* <Return>                                                              */
  /*    FreeType error code.  0 means success.                             */
  /*                                                                       */
  LOCAL_FUNC
  FT_Error  Z1_Init_Face( FT_Stream      stream,
                          T1_Face        face,
                          FT_Int         face_index,
                          FT_Int         num_params,
                          FT_Parameter*  params )
  {
    FT_Error            error;
    PSNames_Interface*  psnames;

    FT_UNUSED( num_params );
    FT_UNUSED( params );
    FT_UNUSED( face_index );
    FT_UNUSED( stream );


    face->root.num_faces = 1;

    psnames = (PSNames_Interface*)face->psnames;
    if ( !psnames )
    {
      psnames = (PSNames_Interface*)
                FT_Get_Module_Interface( FT_FACE_LIBRARY( face ), "psnames" );

      face->psnames = psnames;
    }

    /* open the tokenizer, this will also check the font format */
    error = Z1_Open_Face( face );
    if ( error )
      goto Exit;

    /* if we just wanted to check the format, leave successfully now */
    if ( face_index < 0 )
      goto Exit;

    /* check the face index */
    if ( face_index != 0 )
    {
      FT_ERROR(( "Z1_Init_Face: invalid face index\n" ));
      error = T1_Err_Invalid_Argument;
      goto Exit;
    }

    /* Now, load the font program into the face object */

    /* Init the face object fields */
    /* Now set up root face fields */
    {
      FT_Face  root = (FT_Face)&face->root;


      root->num_glyphs   = face->type1.num_glyphs;
      root->num_charmaps = 1;

      root->face_index = face_index;
      root->face_flags = FT_FACE_FLAG_SCALABLE;

      root->face_flags |= FT_FACE_FLAG_HORIZONTAL;

      root->face_flags |= FT_FACE_FLAG_GLYPH_NAMES;

      if ( face->type1.font_info.is_fixed_pitch )
        root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH;

      if ( face->blend )
        root->face_flags |= FT_FACE_FLAG_MULTIPLE_MASTERS;

      /* XXX: TODO -- add kerning with .afm support */

      /* get style name -- be careful, some broken fonts only */
      /* have a `/FontName' dictionary entry!                 */
      root->family_name = face->type1.font_info.family_name;
      if ( root->family_name )
      {
        char*  full   = face->type1.font_info.full_name;
        char*  family = root->family_name;


        while ( *family && *full == *family )
        {
          family++;
          full++;
        }

        root->style_name = ( *full == ' ' ? full + 1
                                          : (char *)"Regular" );
      }
      else
      {
        /* do we have a `/FontName'? */
        if ( face->type1.font_name )
        {
          root->family_name = face->type1.font_name;
          root->style_name  = "Regular";
        }
      }

      /* no embedded bitmap support */
      root->num_fixed_sizes = 0;
      root->available_sizes = 0;

      root->bbox         = face->type1.font_bbox;
      root->units_per_EM = 1000;
      root->ascender     =  (FT_Short)face->type1.font_bbox.yMax;
      root->descender    = -(FT_Short)face->type1.font_bbox.yMin;
      root->height       = ( ( root->ascender + root->descender ) * 12 ) / 10;

      /* now compute the maximum advance width */

      root->max_advance_width = face->type1.private_dict.standard_width[0];

      /* compute max advance width for proportional fonts */
      if ( !face->type1.font_info.is_fixed_pitch )
      {
        FT_Int  max_advance;


        error = Z1_Compute_Max_Advance( face, &max_advance );

        /* in case of error, keep the standard width */
        if ( !error )
          root->max_advance_width = max_advance;
        else
          error = 0;   /* clear error */
      }

      root->max_advance_height = root->height;

      root->underline_position  = face->type1.font_info.underline_position;
      root->underline_thickness = face->type1.font_info.underline_thickness;

      root->max_points   = 0;
      root->max_contours = 0;
    }

    /* charmap support -- synthetize unicode charmap if possible */
    {
      FT_Face     root    = &face->root;
      FT_CharMap  charmap = face->charmaprecs;


      /* synthesize a Unicode charmap if there is support in the `PSNames' */
      /* module                                                            */
      if ( face->psnames )
      {
        PSNames_Interface*  psnames = (PSNames_Interface*)face->psnames;


        if ( psnames->unicode_value )
        {
          error = psnames->build_unicodes(
                    root->memory,
                    face->type1.num_glyphs,
                    (const char**)face->type1.glyph_names,
                    &face->unicode_map );
          if ( !error )
          {
            root->charmap        = charmap;
            charmap->face        = (FT_Face)face;
            charmap->encoding    = ft_encoding_unicode;
            charmap->platform_id = 3;
            charmap->encoding_id = 1;
            charmap++;
          }

          /* simply clear the error in case of failure (which really) */
          /* means that out of memory or no unicode glyph names       */
          error = FT_Err_Ok;
        }
      }

      /* now, support either the standard, expert, or custom encoding */
      charmap->face        = (FT_Face)face;
      charmap->platform_id = 7;  /* a new platform id for Adobe fonts? */

      switch ( face->type1.encoding_type )
      {
      case t1_encoding_standard:
        charmap->encoding    = ft_encoding_adobe_standard;
        charmap->encoding_id = 0;
        break;

      case t1_encoding_expert:
        charmap->encoding    = ft_encoding_adobe_expert;
        charmap->encoding_id = 1;
        break;

      default:
        charmap->encoding    = ft_encoding_adobe_custom;
        charmap->encoding_id = 2;
        break;
      }

      root->charmaps     = face->charmaps;
      root->num_charmaps = charmap - face->charmaprecs + 1;
      face->charmaps[0]  = &face->charmaprecs[0];
      face->charmaps[1]  = &face->charmaprecs[1];
    }

  Exit:
    return error;
  }


  /*************************************************************************/
  /*                                                                       */
  /* <Function>                                                            */
  /*    Z1_Init_Driver                                                     */
  /*                                                                       */
  /* <Description>                                                         */
  /*    Initializes a given Type 1 driver object.                          */
  /*                                                                       */
  /* <Input>                                                               */
  /*    driver :: A handle to the target driver object.                    */
  /*                                                                       */
  /* <Return>                                                              */
  /*    FreeType error code.  0 means success.                             */
  /*                                                                       */
  LOCAL_FUNC
  FT_Error  Z1_Init_Driver( Z1_Driver  driver )
  {
    FT_UNUSED( driver );

    return T1_Err_Ok;
  }


  /*************************************************************************/
  /*                                                                       */
  /* <Function>                                                            */
  /*    Z1_Done_Driver                                                     */
  /*                                                                       */
  /* <Description>                                                         */
  /*    Finalizes a given Type 1 driver.                                   */
  /*                                                                       */
  /* <Input>                                                               */
  /*    driver  :: A handle to the target Type 1 driver.                   */
  /*                                                                       */
  LOCAL_DEF
  void  Z1_Done_Driver( Z1_Driver  driver )
  {
    FT_UNUSED( driver );
  }


/* END */
Commit	Line	Data
cabec872 RR	1	/***************************************************************************/
	2	/* */
	3	/* z1objs.c */
	4	/* */
	5	/* Experimental Type 1 objects manager (body). */
	6	/* */
	7	/* Copyright 1996-2000 by */
	8	/* David Turner, Robert Wilhelm, and Werner Lemberg. */
	9	/* */
	10	/* This file is part of the FreeType project, and may only be used, */
	11	/* modified, and distributed under the terms of the FreeType project */
	12	/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
	13	/* this file you indicate that you have read the license and */
	14	/* understand and accept it fully. */
	15	/* */
	16	/***************************************************************************/
	17
	18
	19	#include <freetype/internal/ftdebug.h>
	20	#include <freetype/internal/ftstream.h>
	21
	22
	23	#ifdef FT_FLAT_COMPILE
	24
	25	#include "z1gload.h"
	26	#include "z1load.h"
	27	#include "z1afm.h"
	28
	29	#else
	30
	31	#include <type1z/z1gload.h>
	32	#include <type1z/z1load.h>
	33	#include <type1z/z1afm.h>
	34
	35	#endif
	36
	37
	38	#include <freetype/internal/psnames.h>
	39
	40
	41	/*************************************************************************/
	42	/* */
	43	/* The macro FT_COMPONENT is used in trace mode. It is an implicit */
	44	/* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
	45	/* messages during execution. */
	46	/* */
	47	#undef FT_COMPONENT
	48	#define FT_COMPONENT trace_z1objs
	49
	50
	51	/*************************************************************************/
	52	/* */
	53	/* FACE FUNCTIONS */
	54	/* */
	55	/*************************************************************************/
	56
	57
	58	/*************************************************************************/
	59	/* */
	60	/* <Function> */
	61	/* Z1_Done_Face */
	62	/* */
	63	/* <Description> */
	64	/* The face object destructor. */
65	/* */
66	/* <Input> */
67	/* face :: A typeless pointer to the face object to destroy. */
68	/* */
69	LOCAL_FUNC
70	void Z1_Done_Face( T1_Face face )
71	{
72	FT_Memory memory;
73	T1_Font* type1 = &face->type1;
74
75
76	if ( face )
77	{
78	memory = face->root.memory;
79
80	#ifndef Z1_CONFIG_OPTION_NO_MM_SUPPORT
81	/* release multiple masters information */
82	Z1_Done_Blend( face );
83	face->blend = 0;
84	#endif
85
86	/* release font info strings */
87	{
88	T1_FontInfo* info = &type1->font_info;
89
90
91	FREE( info->version );
92	FREE( info->notice );
93	FREE( info->full_name );
94	FREE( info->family_name );
95	FREE( info->weight );
96	}
97
98	/* release top dictionary */
99	FREE( type1->charstrings_len );
100	FREE( type1->charstrings );
101	FREE( type1->glyph_names );
102
103	FREE( type1->subrs );
104	FREE( type1->subrs_len );
105
106	FREE( type1->subrs_block );
107	FREE( type1->charstrings_block );
108	FREE( type1->glyph_names_block );
109
110	FREE( type1->encoding.char_index );
111	FREE( type1->font_name );
112
113	#ifndef Z1_CONFIG_OPTION_NO_AFM
114	/* release afm data if present */
115	if ( face->afm_data )
116	Z1_Done_AFM( memory, (Z1_AFM*)face->afm_data );
117	#endif
118
119	/* release unicode map, if any */
120	FREE( face->unicode_map.maps );
121	face->unicode_map.num_maps = 0;
122
123	face->root.family_name = 0;
124	face->root.style_name = 0;
125	}
126	}
127
128
129	/*************************************************************************/
130	/* */
131	/* <Function> */
132	/* Z1_Init_Face */
133	/* */
134	/* <Description> */
135	/* The face object constructor. */
136	/* */
137	/* <Input> */
138	/* stream :: input stream where to load font data. */
139	/* */
140	/* face_index :: The index of the font face in the resource. */
141	/* */
142	/* num_params :: Number of additional generic parameters. Ignored. */
143	/* */
144	/* params :: Additional generic parameters. Ignored. */
145	/* */
146	/* <InOut> */
147	/* face :: The face record to build. */
148	/* */
149	/* <Return> */
150	/* FreeType error code. 0 means success. */
151	/* */
152	LOCAL_FUNC
153	FT_Error Z1_Init_Face( FT_Stream stream,
154	T1_Face face,
155	FT_Int face_index,
156	FT_Int num_params,
157	FT_Parameter* params )
158	{
159	FT_Error error;
160	PSNames_Interface* psnames;
161
162	FT_UNUSED( num_params );
163	FT_UNUSED( params );
164	FT_UNUSED( face_index );
165	FT_UNUSED( stream );
166
167
168	face->root.num_faces = 1;
169
170	psnames = (PSNames_Interface*)face->psnames;
171	if ( !psnames )
172	{
173	psnames = (PSNames_Interface*)
174	FT_Get_Module_Interface( FT_FACE_LIBRARY( face ), "psnames" );
175
176	face->psnames = psnames;
177	}
178
179	/* open the tokenizer, this will also check the font format */
180	error = Z1_Open_Face( face );
181	if ( error )
182	goto Exit;
183
184	/* if we just wanted to check the format, leave successfully now */
185	if ( face_index < 0 )
186	goto Exit;
187
188	/* check the face index */
189	if ( face_index != 0 )
190	{
191	FT_ERROR(( "Z1_Init_Face: invalid face index\n" ));
192	error = T1_Err_Invalid_Argument;
193	goto Exit;
194	}
195
196	/* Now, load the font program into the face object */
197
198	/* Init the face object fields */
199	/* Now set up root face fields */
200	{
201	FT_Face root = (FT_Face)&face->root;
202
203
204	root->num_glyphs = face->type1.num_glyphs;
205	root->num_charmaps = 1;
206
207	root->face_index = face_index;
208	root->face_flags = FT_FACE_FLAG_SCALABLE;
209
210	root->face_flags \|= FT_FACE_FLAG_HORIZONTAL;
211
212	root->face_flags \|= FT_FACE_FLAG_GLYPH_NAMES;
213
214	if ( face->type1.font_info.is_fixed_pitch )
215	root->face_flags \|= FT_FACE_FLAG_FIXED_WIDTH;
216
217	if ( face->blend )
218	root->face_flags \|= FT_FACE_FLAG_MULTIPLE_MASTERS;
219
220	/* XXX: TODO -- add kerning with .afm support */
221
222	/* get style name -- be careful, some broken fonts only */
223	/* have a `/FontName' dictionary entry! */
224	root->family_name = face->type1.font_info.family_name;
225	if ( root->family_name )
226	{
227	char* full = face->type1.font_info.full_name;
228	char* family = root->family_name;
229
230
231	while ( family && full == *family )
232	{
233	family++;
234	full++;
235	}
236
237	root->style_name = ( *full == ' ' ? full + 1
238	: (char *)"Regular" );
239	}
240	else
241	{
242	/* do we have a `/FontName'? */
243	if ( face->type1.font_name )
244	{
245	root->family_name = face->type1.font_name;
246	root->style_name = "Regular";
247	}
248	}
249
250	/* no embedded bitmap support */
251	root->num_fixed_sizes = 0;
252	root->available_sizes = 0;
253
254	root->bbox = face->type1.font_bbox;
255	root->units_per_EM = 1000;
256	root->ascender = (FT_Short)face->type1.font_bbox.yMax;
257	root->descender = -(FT_Short)face->type1.font_bbox.yMin;
258	root->height = ( ( root->ascender + root->descender ) * 12 ) / 10;
259
260	/* now compute the maximum advance width */
261
262	root->max_advance_width = face->type1.private_dict.standard_width[0];
263
264	/* compute max advance width for proportional fonts */
265	if ( !face->type1.font_info.is_fixed_pitch )
266	{
267	FT_Int max_advance;
268
269
270	error = Z1_Compute_Max_Advance( face, &max_advance );
271
272	/* in case of error, keep the standard width */
273	if ( !error )
274	root->max_advance_width = max_advance;
275	else
276	error = 0; /* clear error */
277	}
278
279	root->max_advance_height = root->height;
280
281	root->underline_position = face->type1.font_info.underline_position;
282	root->underline_thickness = face->type1.font_info.underline_thickness;
283
284	root->max_points = 0;
285	root->max_contours = 0;
286	}
287
288	/* charmap support -- synthetize unicode charmap if possible */
289	{
290	FT_Face root = &face->root;
291	FT_CharMap charmap = face->charmaprecs;
292
293
294	/* synthesize a Unicode charmap if there is support in the `PSNames' */
295	/* module */
296	if ( face->psnames )
297	{
298	PSNames_Interface* psnames = (PSNames_Interface*)face->psnames;
299
300
301	if ( psnames->unicode_value )
302	{
303	error = psnames->build_unicodes(
304	root->memory,
305	face->type1.num_glyphs,
306	(const char**)face->type1.glyph_names,
307	&face->unicode_map );
308	if ( !error )
309	{
310	root->charmap = charmap;
311	charmap->face = (FT_Face)face;
312	charmap->encoding = ft_encoding_unicode;
313	charmap->platform_id = 3;
314	charmap->encoding_id = 1;
315	charmap++;
316	}
317
318	/* simply clear the error in case of failure (which really) */
319	/* means that out of memory or no unicode glyph names */
320	error = FT_Err_Ok;
321	}
322	}
323
324	/* now, support either the standard, expert, or custom encoding */
325	charmap->face = (FT_Face)face;
326	charmap->platform_id = 7; /* a new platform id for Adobe fonts? */
327
328	switch ( face->type1.encoding_type )
329	{
330	case t1_encoding_standard:
331	charmap->encoding = ft_encoding_adobe_standard;
332	charmap->encoding_id = 0;
333	break;
334
335	case t1_encoding_expert:
336	charmap->encoding = ft_encoding_adobe_expert;
337	charmap->encoding_id = 1;
338	break;
339
340	default:
341	charmap->encoding = ft_encoding_adobe_custom;
342	charmap->encoding_id = 2;
343	break;
344	}
345
346	root->charmaps = face->charmaps;
347	root->num_charmaps = charmap - face->charmaprecs + 1;
348	face->charmaps[0] = &face->charmaprecs[0];
349	face->charmaps[1] = &face->charmaprecs[1];
350	}
351
352	Exit:
353	return error;
354	}
355
356
357	/*************************************************************************/
358	/* */
359	/* <Function> */
360	/* Z1_Init_Driver */
361	/* */
362	/* <Description> */
363	/* Initializes a given Type 1 driver object. */
364	/* */
365	/* <Input> */
366	/* driver :: A handle to the target driver object. */
367	/* */
368	/* <Return> */
369	/* FreeType error code. 0 means success. */
370	/* */
371	LOCAL_FUNC
372	FT_Error Z1_Init_Driver( Z1_Driver driver )
373	{
374	FT_UNUSED( driver );
375
376	return T1_Err_Ok;
377	}
378
379
380	/*************************************************************************/
381	/* */
382	/* <Function> */
383	/* Z1_Done_Driver */
384	/* */
385	/* <Description> */
386	/* Finalizes a given Type 1 driver. */
387	/* */
388	/* <Input> */
389	/* driver :: A handle to the target Type 1 driver. */
390	/* */
391	LOCAL_DEF
392	void Z1_Done_Driver( Z1_Driver driver )
393	{
394	FT_UNUSED( driver );
395	}
396
397
398	/* END */